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1. 发明申请

US20190190465A1 Switched-Capacitor Power Amplifiers 审中-公开
公开(公告)号：US20190190465A1
公开(公告)日：2019-06-20
申请号：US16222340
申请日：2018-12-17
申请人： Stichting IMEC Nederland
发明人： Elbert Bechthum , Ao Ba
IPC分类号： H03F3/00 , H03F3/217 , H03F3/193 , H03F1/02
CPC分类号： H03F3/005 , H03F1/0211 , H03F3/193 , H03F3/2171 , H03F3/2178 , H03F3/3028 , H03F3/3064 , H03F3/72 , H03F2200/09 , H03F2200/312 , H03F2200/417 , H03F2200/421 , H03F2200/451 , H03F2200/48
摘要： A switched-capacitor power amplifier comprising a plurality of cells and methods for its operation are described. Switched signal lines switch supply to respective capacitors. Switches connect respective signal lines to a first supply and switches connect respective signal lines to a second supply. Pairs of switches on each signal line are switched so that one is switched off whilst the other is switched on. In a “full amplitude” mode, operation of the switches provides an output having a peak determined by the first supply. A switch signal line is provided between nodes in respective signal lines, a switch being provided in the switch signal line. In a “half amplitude” mode, switch is switched at the radio frequency in the other direction to that of switches connecting the signal lines to respective ones of the first and second supplies with the other switches being kept open.

2. 发明授权

US09692371B2 Current feedback output circuit 有权
公开(公告)号：US09692371B2
公开(公告)日：2017-06-27
申请号：US14733402
申请日：2015-06-08
申请人： Kabushiki Kaisha Toshiba
发明人： Akira Yamauchi , Hiroyuki Tsurumi
IPC分类号： H03F1/34 , H03F3/21 , H03F3/30 , H03F3/45
CPC分类号： H03F3/211 , H03F1/342 , H03F3/3028 , H03F3/45475 , H03F2200/03 , H03F2200/135 , H03F2200/91 , H03F2203/21181 , H03F2203/45138 , H03F2203/45511
摘要： The current feedback output circuit includes first and second transistors. The current feedback output circuit includes a current amplifier that has a non-inverting input terminal, an inverting input terminal, a first output terminal and a second output terminal, an input impedance of the non-inverting input terminal being higher than an input impedance of the inverting input terminal, and flows a current obtained by amplifying the difference between a current of an input signal to the non-inverting input terminal and a current input to the inverting input terminal between the first output terminal and the second output terminal. The current feedback output circuit includes first to sixth current mirror circuits. The current feedback output circuit includes a current feedback circuit that supplies a current responsive to a voltage at the signal output terminal to the inverting input terminal.

3. 发明申请

US20170040957A1 POWER AMPLIFIER HAVING STACK STRUCTURE 有权
标题翻译：具有堆叠结构的功率放大器
公开(公告)号：US20170040957A1
公开(公告)日：2017-02-09
申请号：US15297159
申请日：2016-10-19
申请人： SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
发明人： Ho Yong HWANG , Chang Kun PARK
IPC分类号： H03F3/21 , H03F3/45 , H03F3/30 , H03F3/213 , H03F1/02
CPC分类号： H03F3/211 , H03F1/0283 , H03F3/195 , H03F3/213 , H03F3/245 , H03F3/3022 , H03F3/3028 , H03F3/45179 , H03F3/45237 , H03F2200/405 , H03F2200/408 , H03F2200/516 , H03F2203/45481 , H03F2203/45544 , H03F2203/45594 , H03F2203/45631
摘要： A power amplifier having a stack structure comprises a first driver stage that receives a power voltage from a power supply and receives and amplifies an input signal; a second driver stage that receives the power voltage from the power supply, has an input terminal connected with an output terminal of the first driver stage, and receives and amplifies an output signal from the first driver stage; and a power stage that has a power input terminal connected with a ground terminal of the first driver stage and a ground terminal of the second driver stage and receives a virtual ground voltage, and has an input terminal connected with an output terminal of the second driver stage and receives and amplifies an output signal from the second driver stage.
摘要翻译：具有堆叠结构的功率放大器包括：第一驱动级，其从电源接收电力电压并接收并放大输入信号; 从电源接收电源电压的第二驱动级，具有与第一驱动级的输出端连接的输入端，并接收并放大来自第一驱动级的输出信号; 以及功率级，其具有与第一驱动级的接地端子连接的电力输入端子和第二驱动级的接地端子，并接收虚拟接地电压，并且具有与第二驱动器的输出端子连接的输入端子并接收并放大来自第二驱动级的输出信号。

4. 发明申请

US20170040949A1 OPERATIONAL AMPLIFIER CIRCUIT AND BIAS CURRENT SUPPLY METHOD 有权
标题翻译：操作放大器电路和偏置电流供应方法
公开(公告)号：US20170040949A1
公开(公告)日：2017-02-09
申请号：US15305462
申请日：2014-07-08
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Takayuki NAKAI
IPC分类号： H03F1/02 , H03F3/45
CPC分类号： H03F1/0233 , H03F1/0277 , H03F3/3028 , H03F3/45219 , H03F3/45475 , H03F3/45748 , H03F2200/261
摘要： Bias current is supplied to a first differential pair and a second differential pair from a first transistor being a single current source. Bias current is supplied to a third differential pair and a fourth differential pair from a second transistor being a single current source. An input voltage is at a power supply potential, and an input voltage is at a ground potential. When the second differential pair and the third differential pair are turned OFF, the bias current supplied from the first transistor flows to an output stage via the first differential pair, and the bias current supplied from the second transistor flows to the output stage via the fourth differential pair. Therefore, when the second differential pair and the third differential pair are turned OFF, a circuit current is kept constant, and a fluctuation in a frequency characteristic can be restrained.
摘要翻译：偏置电流被提供给来自作为单个电流源的第一晶体管的第一差分对和第二差分对。偏置电流被提供给来自作为单个电流源的第二晶体管的第三差分对和第四差分对。输入电压为电源电位，输入电压为接地电位。当第二差分对和第三差分对被截止时，从第一晶体管提供的偏置电流经由第一差分对流到输出级，并且从第二晶体管提供的偏置电流经由第四差分对流到输出级差分对。因此，当第二差分对和第三差分对断开时，电路电流保持恒定，并且可以抑制频率特性的波动。

5. 发明申请

US20160308501A1 ELECTRONIC DEVICE FOR A RADIOFREQUENCY SIGNAL RECEPTION CHAIN, COMPRISING A LOW-NOISE TRANSIMPEDANCE AMPLIFIER STAGE 审中-公开
公开(公告)号：US20160308501A1
公开(公告)日：2016-10-20
申请号：US15192151
申请日：2016-06-24
申请人： STMicroelectronics SA
发明人： Laurent Chabert
IPC分类号： H03F3/45 , G01S7/03 , H03F3/193
CPC分类号： H03F3/45282 , G01S7/03 , H03D7/1433 , H03D7/1458 , H03F1/0205 , H03F1/0261 , H03F3/19 , H03F3/193 , H03F3/3028 , H03F3/45076 , H03F3/45372 , H03F2200/294 , H03F2200/336 , H03F2200/451 , H03F2200/91 , H03F2203/30015 , H03F2203/45081 , H03F2203/45112 , H03F2203/45154 , H03F2203/45288 , H04B1/06
摘要： An electronic device includes a transimpedance amplifier stage having an amplifier end stage of the class AB type and a preamplifier stage coupled between an output of a frequency transposition stage and an input of the amplifier end stage. A self-biased common-mode control stage is configured to bias the preamplifier stage. The preamplifier stage is formed by a differential amplifier with an active load that is biased in response to the self-biased common-mode control stage.

6. 发明授权

US09473090B2 Trans-impedance amplifier with replica gain control 有权
标题翻译：具有复制增益控制的跨阻放大器
公开(公告)号：US09473090B2
公开(公告)日：2016-10-18
申请号：US14550842
申请日：2014-11-21
申请人： INPHI CORPORATION
发明人： James Lawrence Gorecki , Irene Quek
IPC分类号： H03F3/08 , H03F3/45 , H03G3/30 , H03G1/00 , H03F1/08 , H03F3/30
CPC分类号： H03G3/3084 , H03F1/086 , H03F3/082 , H03F3/3028 , H03F3/45076 , H03F3/45179 , H03F2200/453 , H03F2203/30084 , H03F2203/30117 , H03F2203/45224 , H03F2203/45288 , H03G1/0035 , H04B10/2507 , H04B10/6911
摘要： This disclosure relates to the field of amplifiers for multi-level optical communication and more particularly to techniques for trans-impedance amplifiers (TIA) with gain control. The claimed embodiments address the problem of implementing a low cost TIA that exhibits high linearity, low noise, low power, and wide bandwidth. More specifically, some claims are directed to approaches for providing TIA gain control using a plurality of inverter-based replica gain control cells controlled by a feedback loop to manage the current into the amplifying output stage and thereby the TIA output voltage.
摘要翻译：本公开涉及用于多级光通信的放大器领域，更具体地涉及具有增益控制的跨阻抗放大器（TIA）的技术。所要求保护的实施例解决了实现具有高线性度，低噪声，低功率和宽带宽的低成本TIA的问题。更具体地，一些权利要求涉及用于使用由反馈环路控制的多个基于逆变器的复制增益控制单元来提供TIA增益控制的方法，以管理进入放大输出级的电流，从而管理TIA输出电压。

7. 发明授权

US09369098B2 Inverting amplifier 有权
标题翻译：反相放大器
公开(公告)号：US09369098B2
公开(公告)日：2016-06-14
申请号：US14621133
申请日：2015-02-12
申请人： Kabushiki Kaisha Toshiba
发明人： Tetsuro Itakura , Masanori Furuta
IPC分类号： H03F3/04 , H03F3/30 , H03F1/30
CPC分类号： H03F3/3028 , H03F1/308 , H03F2200/291 , H03F2203/30084 , H03F2203/30117
摘要： An inverting amplifier according to a first embodiment includes an inverter circuit, a first voltage generating circuit, and a second voltage generating circuit. The inverter circuit has an input terminal, an output terminal, a first first-conductivity transistor, and a first second-conductivity transistor. The first (second) voltage generating circuit has a first (second) current source, a second first (second)-conductivity transistor, and a third first (second)-conductivity transistor. The first (second) current source supplies a predetermined current. The second first (second)-conductivity transistor has a control terminal with a predetermined bias voltage applied, and two ends connected to the other end of the first first (second)-conductivity transistor and the first (second) current source, respectively. The third first (second)-conductivity transistor has a control terminal connected to the other end of the second first (second)-conductivity transistor, and one end connected to one end of the second first (second)-conductivity transistor.
摘要翻译：根据第一实施例的反相放大器包括逆变器电路，第一电压产生电路和第二电压产生电路。逆变器电路具有输入端子，输出端子，第一第一导电晶体管和第一第二导电晶体管。第一（第二）电压产生电路具有第一（第二）电流源，第二第一（第二） - 导电晶体管和第三第一（第二） - 导电晶体管。第一（第二）电流源提供预定电流。第二第一（第二） - 导体晶体管具有施加预定偏置电压的控制端子，并且两端分别连接到第一第一（第二） - 导体晶体管和第一（第二）电流源的另一端。第三第一（第二） - 导体晶体管具有连接到第二第一（第二） - 导体晶体管的另一端的控制端，并且一端连接到第二第一（第二） - 导电晶体管的一端。

8. 发明授权

US09362872B2 Self-biasing radio frequency circuitry 有权
标题翻译：自偏置射频电路
公开(公告)号：US09362872B2
公开(公告)日：2016-06-07
申请号：US14134223
申请日：2013-12-19
申请人： Marvell World Trade Ltd.
发明人： Jinho Park , Yuan Lu , Li Lin
IPC分类号： H03F3/26 , H03F3/30 , H03F1/02 , H03F1/08 , H03F3/195
CPC分类号： H03F3/3016 , H03F1/0272 , H03F1/083 , H03F3/195 , H03F3/3028 , H03F2200/294 , H03F2203/30021 , H03F2203/30027 , H03F2203/30031 , H03F2203/30033 , H03F2203/30036 , H03F2203/30084 , H03F2203/30117
摘要： The present disclosure describes self-biasing radio frequency circuitry. In some aspects a radio frequency (RF) signal is amplified via a circuit having a first transistor configured to source current to an output of the circuit and a second transistor configured to sink current from the output of the circuit, and another signal is provided, without active circuitry, from the output of the circuit to a gate of the first transistor effective to bias a voltage at the output of the circuit. By so doing, the output of the circuit can be biased without active circuitry which can reduce design complexity of and substrate area consumed by the circuit.
摘要翻译：本公开描述了自偏置射频电路。在一些方面中，射频（RF）信号经由具有第一晶体管的电路被放大，该第一晶体管被配置为将电流源电流到电路的输出，以及第二晶体管，被配置为从电路的输出吸收电流，并且提供另一个信号，没有有源电路，从电路的输出到第一晶体管的栅极有效地偏置电路输出处的电压。通过这样做，电路的输出可以被偏置而没有有源电路，这可以降低电路消耗的设计复杂度和衬底面积。

9. 发明授权

US09054649B2 Crossover performance of power amplifier 有权
标题翻译：功率放大器的交叉性能
公开(公告)号：US09054649B2
公开(公告)日：2015-06-09
申请号：US13702728
申请日：2011-06-13
申请人： Martin Paul Wilson
发明人： Martin Paul Wilson
IPC分类号： H03F1/07 , H03F3/26 , H03F3/195 , H03F3/30
CPC分类号： H03F3/26 , H03F1/0205 , H03F1/42 , H03F3/195 , H03F3/211 , H03F3/265 , H03F3/3028 , H03F2200/36 , H03F2203/21106 , H03F2203/21112 , H03F2203/30006
摘要： There is provided an amplifier arrangement comprising: a main amplifier connected to receive an input signal and generate an amplified version of the input signal; an additional amplifier, having a smaller geometry than the main amplifier, connected to receive the input signal and generate an amplified version thereof; and wherein the outputs of the main amplifier and the additional amplifier are combined to provide an amplified output.
摘要翻译：提供了一种放大器装置，包括：主放大器，被连接以接收输入信号并产生输入信号的放大版本; 具有比主放大器更小的几何形状的附加放大器，被连接以接收输入信号并产生其放大版本; 并且其中主放大器和附加放大器的输出被组合以提供放大的输出。

10. 发明授权

US08836427B2 Folded cascode operational amplifier 有权
标题翻译：折叠共源共栅运算放大器
公开(公告)号：US08836427B2
公开(公告)日：2014-09-16
申请号：US13807304
申请日：2011-11-18
申请人： Liang Cheng
发明人： Liang Cheng
IPC分类号： H03F3/45 , H03F3/30
CPC分类号： H03F3/45192 , H03F3/3016 , H03F3/3028 , H03F3/45076 , H03F3/45183 , H03F2200/456 , H03F2203/45248 , H03F2203/45264 , H03F2203/45308 , H03F2203/45352 , H03F2203/45526 , H03F2203/45674 , H03F2203/45692
摘要： A folded cascode operational amplifier is disclosed. The folded cascode operational amplifier includes a first current source, a second current source, and a first voltage terminal connected to the first current source and the second current source. The folded cascode operational amplifier also includes a first input-transistor connected to the first current source in series, and a second input-transistor connected to the second current source in series. Further, the folded cascode operational amplifier includes a tail current source connected to a connection point between the first input-transistor and the second input-transistor, a load current source, and a second voltage terminal connected to the tail current source and the load current source. The folded cascode operational amplifier also includes an output-transistor connected to the load current source, and an output-terminal arranged between the second current source and the second input-transistor and connected to the output-transistor. The second current source is a mirroring current source of the first current source, and a ratio of a current passing through the second current source to a current passing through the first current source is greater than one.
摘要翻译：公开了折叠共源共栅运算放大器。折叠共源共栅运算放大器包括第一电流源，第二电流源和连接到第一电流源和第二电流源的第一电压端。折叠共源共栅运算放大器还包括串联连接到第一电流源的第一输入晶体管和串联连接到第二电流源的第二输入晶体管。此外，折叠共源共栅运算放大器包括连接到第一输入晶体管和第二输入晶体管之间的连接点的尾电流源，负载电流源和连接到尾电流源和负载电流的第二电压端资源。折叠的共源共栅运算放大器还包括连接到负载电流源的输出晶体管和布置在第二电流源和第二输入晶体管之间并连接到输出晶体管的输出端。第二电流源是第一电流源的镜像电流源，并且通过第二电流源的电流与通过第一电流源的电流的比值大于1。

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